Calk.



No.781,204. f y PATEN'JHSD JAN.3"1,1905.

' RRHEISELMANN.

GALK.

APPLICATION FILED APR. 11, 1904.

2 'SHEETS-SHEET 2.

Afronwfrs I UNITED STATESl Patented January 31, 1905.

PATENT OFFICE.

CALK.

SPECIFICATION `forming part of Letters Patent No. 781,204, dated January31, 1905.

' Appunti,... sie@ April 11, 1904. serai No. 202,540.

Z'o all whom it may concern:

' resident of Hydepark, Cincinnati, in the county outer one, 12, isdivided into two sections byl of Hamilton and State of Ohio, haveinvented a new and Improved Calk, of which the following is afull,clear, and exact description.

My invention relates to calks, and more particularly to those adaptedfor use in connection with horseshoes. Its principal object is toprovide such a device which will be strong and durable and may bereadily applied to the shoe and replaced when worn.

It consists in the various features hereinaf-v ter described and moreparticularly claimed. Reference is to be had to the accompanyingdrawings, forming a part of this specification, in which similarcharacters of reference indicate corresponding parts in all the figures.

Figure 1 is a bottom plan view of a shoe` with one embodiment of myinvention applied to the toe and heel portions. Figs. 2, 3, and

4 are sectional details on the lines 2 2, 3 8and 4 4, respectively, ofFig. 1. Fig.d 5 is atop plan view of the shoe with the callIs removed.Fig. 6 is a bottom plan view thereof. Fig. 7 is a bottom plan view of ashoe to which another form of my invention is applied. Figs. 8 and 9 aresectional details on the lines 8 8 and 9 9, respectively, of Fig. 7.Fig. 10 is a detail in side elevation of the heel-calli illustrated inFig. 7, and Fig. 11 is a sectional detail on the line11 11 of Fig. 7.

S designates a horseshoe, which may be of kthe usual form, except thatupon its upper` side it is provided at the toe with inner and outerrecesses 11 12, which extend from the edges and conform substantially tothe curvature ofl the shoe. Between these recesses is an intermediateportion or wall 18, and the a wall 14. Upon the opposite or lower sideof the shoe, extending transversely across the toe and substantially atthe center thereof, is

an elongated depression or groove 15, while at each side of this grooveis an outwardly-inclined surface 16. Coacting with the shoe on theoutside and inside are holders or calli members A B, respectively,preferably consisting of opposite clamping-arms 17 18, connected by Yedge is seated in the groove 15.

an intermediate portion or wall 19, while the Vlower arm 18 is providedwith a depending holding member or iiange 20. These arms 18 correspondin form to the recesses 11 12, which they are adapted to enter, that ofthe member A having a projection turned up at 21 to extend over thefront of the animals hoof, the width of this projection being such thatthe y space left by it will receive the wall 14.l Each of the 'arms 18is curved at its outer edge to conform to the shoe, while at theopposite or inner side is a straight edge from which the flange 20projects. `W'hen the holders are seated in the'recesses, a space will beleft between these flanges to receive an interposed contact member orcalk proper, 22, which is here shown as consisting of a plate having aserrated edge at 23 of anydesired form. This plate may be of hardenedsteel, while its holdf ers are preferably drop-forged.

In applying the calks to the shoe the holders are placed at the oppositesides and then forced or driven into the recesses and over the oppositeinclines, these latter serving to hold them to`a tight fit, while theyare retained against lateral movement by the` end walls of the vrecessesand by the partition or wall 14. The contact member is introducedbetween them and forced in :until its inner In the iianges are openings23, which registerwith those in the opposite fiange, and with these alsoregister openings 24 in the contact member. The parts may now be securedtogether and upon theshoe by rivets 25 or the like, which are passedthrough the openings and upset or secured on the opposite sides.

At each of the heel extremities of the shoe lare inner and outerrecesses 26 27, respecand surfaces coact the holders or calkmembers C C,which, as in the toe members A B,

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previously described, have opposite clamping-arms 30 3l, with aconnecting portion 32, they of course conforming in shape totherecesses. Their holdingflanges 33 are provided with a curved portion34, which forms a cylindrical wall adapted to receive a shank 35,carrying an extended or fiattened head 36. In the flanges are oppositeopenings 37, and with these register the ends of grooves 38, one ofwhich is situated at each side of the shank. Through these openings andgrooves pass rivets 39, which serve to secure the flanges together andalso to retain the contact members betweenthem and prevent the rotationof the latter. The relation of these grooves to the shank may be such asto give any desired position to the extended head. For example, at theright of Fig. l they are situated at the ends of the head, so that thehead extends longitudinally of the shoe, while at the opposite side theylie in a plane parallel to the head extension, causing the head toassume a position transversely of the shoe. The holders may be appliedto the shoe in the same manner as has already been described inconnection with the toe-calls and retained in place upon the inclinedsurfaces and in the recesses by a rivet or similar securing device 39,which extends through the connecting portions 32 and through the shoe.

In connection with the shoe S in Fig. 7 has been illustrated a form ofmy invention which is particularly adapted for winter use. Here theintermediate or contact portion is omitted and the flanges 40 coactwithone another at their adjacent faces. Their edges instead of beingsmooth, as are those hereinbefore described, maybe serrated and of suchform as will be considered to give the best holding effect. The heelmembers G G are also shown with meeting flanges 41 4l lying parallel toone another instead of having a curved portion which forms the openingto receive a cylindrical shank. The form of the edges of theseheel-ealls is particularly shown in Fig. 10; but any desired contour maybe adopted.

When the intermediate callis or contact portions are used, it will beevident that these may be of steel of such temper that it will be veryresistive of wear, but which if utilized for the holders or any partwhich must be driven into place would be liable to break. These calks,therefore, last for a long time and when they are worn out may be easilyreplaced.

It will be seen that when the intermediate portion has become worn downto the edges of the ianges there will be presented for wear a surface ofsubstantially three times the area of that which previously contactedwith the ground. When in this condition, the callis are well adapted forsummer use, it being then unnecessary to secure any especial holdingeffect against slipping. Then when the three members have become worndown close to the rivet-holes they may be removed and the holders laidaway for winter use, they being still effective to support theintermediate calk. It will be obvious that by giving this central orintermediate calli a positive engagement at its end with thc shoe thecalli strncture as a whole will be considerably strengthened, since agreat portion of the lateral strain is taken from the holders.

Having thus described my invention, l claim as new and desire to secureby Letters Patent- I. The combination with a shoe provided withoppositely-inclined faces at one side and recesses at the opposite side,of call; members seated in the recesses and engaging the inclined faces.

2. The' combination with a shoe provided with oppositely-inclined facesat one side and recesses at the opposite side, of call; members seatedin the recesses and engaging the inclined faces, and securing meansextending through the calk members.

3. The combination with a shoe, of holders situated at opposite sidesthereof, a contact member interposed between the holders, and securingmeans engaging' both the holders and the contact member.

4. The combination with a shoe provided with oppositely-inclined faces,of holders situated at opposite sides of the shoe and coacting` with theinclined faces, and a contact member interposed between the holders.

5. The combination with a shoe provided at one side with a recess and atthe opposite side wit-h oppositely-inclined faces, of holders seated inthe recesses and engaging the inclined faces, and a contact memberinterposed between the holders.

6. The combination with a shoe provided with a depression, of holderssituated upon the shoe at each side of the depression, and a contactmember interposed between the holders and entering the depression.

7. A call: comprising opposed holders, a contact member situated betweenthe holders, and securing means engaging' the holders and the contactmember.

8. A calli comprising opposed holders which have separated clamping-armsand a flange projecting from one of said arms, and a contact membersituated between the holders.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FRANK FREDERIC lIEISEhlllANN.

Titnessesz JOHN HEISELMANN, CHARLES EHRET.

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